Home / 391,373,751.42-540,096,124.44-215,164,744.76

Finding the Fourth Proportional to 391,373,751.42, 540,096,124.44 and 215,164,744.76

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Solution

The fourth proportional to 391,373,751.42, 540,096,124.44 and 215,164,744.76 is: 296,927,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,373,751.42 : 540,096,124.44 = 215,164,744.76 : x
  2. Step 2: Convert to fraction form
    391,373,751.42/540,096,124.44 = 215,164,744.76/x
  3. Step 3: Cross multiply
    391,373,751.42x = 540,096,124.44 × 215,164,744.76
  4. Step 4: Simplify right side
    391,373,751.42x = 116,209,644,760,997,808
  5. Step 5: Solve for x
    x = 116,209,644,760,997,808/391,373,751.42
  6. Step 6: Final answer
    x = 296,927,538.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.